After five hundred years of peace, a Republic team of surveyors located Dyspeth. The Dyspeth natives rejoined the Republic, albeit reluctantly, as reserved merchants and traders. They began to spread to neighboring systems, but the people they met did not understand the motives of the Disciples. However, the Disciples were concerned with protecting the weak sentients from the misdeeds and injustices of the strong.[1]

After the individual known as "Twilight" formed the Disciples of Twilight, the members of the group sought to combine their efforts so they could adapt to Dysepth's dark environment. They eventually sought to defend the people of Dyspeth. The group believed in "shadowy justice"; when the tradition's members spread across the galaxy after Dyspeth's discovery by the Republic, they sought to protect weaker sentients from the cruelty of the strong. While the Disciples of Twilight consisted primarily of Dyspeth natives, anyone who was Force-sensitive and agreed with the Disciples' beliefs was welcome to join.[1]

The Force adepts who were members of the Disciples of Twilight sought primarily to use the Force to bend light. After Dyspeth was located by the Republic, the members of the tradition that moved throughout the galaxy found that they were capable of using their Force powers to a greater extent, since most worlds were brighter than their own. The Disciples of Twilight shared powers comparable to the Fallanassi, who also possessed the ability of bending light. However, the group's members used other Force abilities that were unheard of anywhere else in the galaxy. Members used the Force to manipulate both light and darkness; the Disciples were capable of using the powers Cloak of Shadow and Shadow Armor to bend light so that they could render themselves invisible. They used the Force to gain low-light vision and to locate enemies that concealed themselves. The adepts could also utilize the Force to create illusory phantoms around an enemy.[1]